Review the different regions of the Sparkfun microSD shield shown below in Figure 1. Note region 1, the prototyping area.
Figure 1: Sparkfun microSD Shield Overview
Review the switch circuit shown below in Figure 2.
Figure 2: Switch Circuit
Review the switch circuit implemented within the prototyping area of the Sparkfun microSD shield shown below in Figure 3. Both a front and back view are provided.
Figure 3: Implemented Switch Circuit (Front and Back)